TelecomStudy18

The latest revision of the LTE standard defines bands of operation, including both paired and unpaired spectrum. 1-32 bands are for paired (FDD) operation, while bands 33-40 are for unpaired (TDD) operation Paired (FDD) and Unpaired (TDD) Operating Bands for LTE with Uplink & Downlink Frequency 

Maxico's America Movil is launching a takeover bid for the Telekom Austria Group with secure an agreement with the Austrian government's own holding company IAG. America Movil and ÖIAG have initially signed a shareholders’ agreement to effectively pool their stakes in the telecoms company into a single syndicate. America Movil already owns 26.4% of the company, while the government owns 28.4% of the telco. Now that the agreement, which had been expected, has been signed, the two companies jointly control more than 30% of the shares and are required by Austrian stock market rules to launch a takeover bid for the company. Subject to the closing of the takeover bid, the two shareholders will also pump an additional EUR1 billion into the company to help fund network upgrades. America Movil will take over management of the company, although it is expected that the Austrian government would, through ÖIAG remain the larger of the two shareholders. ÖIAG also has the right...

Definition: Signaling System 7 (SS7) is an architecture for  performing out-of-band signaling in support of the call-establishment, billing, routing, and information-exchange functions of the public switched telephone network (PSTN). It identifies functions to be performed by a signaling system network and a protocol to enable their performance. What is Signaling? Signaling refers to the exchange of information between call components required to provide and maintain service.

Long code  in CDMA is a  chip  sequence which is 2 40  chips long, which repeats every 41.4 days. Its primary purpose is to assist in spreading the signal, to make spread spectrum work more efficiently. The Long code used on the  reverse link  is usually modified using the phone's  ESN  when in a call. See  Long Code Mask .

Download the WCDMA Basic document    Click here to Download 

FADING in Telecomunication •           The communication between the base station and mobile station in mobile systems is mostly non-LOS. •           The LOS path between the transmitter and the receiver is affected by terrain and obstructed by buildings and other objects. •           The mobile station is also moving in different directions at different speeds. •           The RF signal from the transmitter is scattered by reflection and diffraction and reaches the receiver through many non-LOS paths. This non-LOS path causes long-term and short term fluctuations in the form of log-normal fading and rayleigh and rician fading, which degrades the performance of the RF channel LONG TERM FADING •           Terrain configuration & man made enviro...

(E)GPRS Network Infrastructure How to calculate what •           No. of EGPRS resources used in 1 sector * No. of sectors : 2 x 3 •            No. of time slot/sector * no of time slot used for EDAP :- 2 * 3 = 6 •           So total time slots per site 6 + 6 = 12 •           1 NSEI support 256 time slot with upgrade % as 10 so total no of time slots which can be equipped is 256 - 10% of 256 = 230.4 ~ 230 •           So no. of sites per NSEI is 230/12 = 19.16 ~ 19 •           So no NSEI required / BSC :  100 / 19 = 5.2 +1 (for future use) ~ 6 •           2 NSEI supports 1 BCSU so no. of PCU required : 6/2 = 3 •    ...